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Under the effect of strong heat, chemical fertilizers tend to decompose. These decompositions can be followed by burns or explosions. The tendency to suffer self-sustaining decomposition is determined by the test method described in Test S.1 of the United Nation Manual of Tests and Criteria for the classification of ammonium nitrate fertilizers. The purpose of this work is to present the tests, experiments and interpretation of the experimental data necessary for the classification of chemical fertilizers based on...

Spontaneous combustion is a phenomenon that results from the heating of combustible organic powders by slow oxidation and which occurs through the air passage (created by an air depression) through the mass of dust. The oxidation phenomenon of combustible powders represents their reaction with atmospheric oxygen resulting in products of carbon dioxide, carbon oxide, water and other gases whose content depends on the temperature at which the oxidation takes place. During oxidation, the oxidation rate is a function ...